Billie Eilish Finneas O'Connell, producer; Rob Kinelski & Finneas O'Connell, engineers/mixers; Billie Eilish O'Connell & Finneas O'Connell, songwriters; John Greenham, mastering engineer THANK U, NEXT Ariana Grande Tommy Brown, Ilya, Max Martin & Victoria Monet, producers; Serban Ghenea & Brendan Morawski, engineers/mixers; Tommy Brown, Ariana Grande, Savan Kotecha, Max Martin, Victoria Monet, Tayla Parx & Ilya Salmanzadeh, songwriters; Randy Merrill, mastering engineer I USED TO KNOW HER H.E.R.
